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(Delphi DLL) Determine if Connected and Logged OnThe IsConnected property indicates whether or not the FTP component has a valid TCP/IP connection (and is logged on) to the FTP server.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Ftp2; ... procedure TForm1.Button1Click(Sender: TObject); var ftp: HCkFtp2; success: Boolean; begin // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. ftp := CkFtp2_Create(); CkFtp2_putHostname(ftp,'ftp.example.com'); CkFtp2_putUsername(ftp,'mylogin'); CkFtp2_putPassword(ftp,'mypassword'); // Connect and login to the FTP server. success := CkFtp2_Connect(ftp); if (success <> True) then begin Memo1.Lines.Add(CkFtp2__lastErrorText(ftp)); Exit; end; // ... // At any point in an FTP session, the IsConnected property // can be checked to determine if the component has remained // connected to the FTP server. if (CkFtp2_getIsConnected(ftp) = True) then begin Memo1.Lines.Add('Connected!'); end else begin Memo1.Lines.Add('Not connected!'); end; // ... success := CkFtp2_Disconnect(ftp); CkFtp2_Dispose(ftp); end; |
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